To ride the bike, you have to turn on the display by holding the power button on the left side of the handlebar for 3 sec. The display will show the battery level, range and assistance level. You can adjust the assistance level by pressing the buttons up or down on the left side of the handlebar.
When the display is on, you can just start pedaling and you will feel the electric assistance.
When you park the bike, it will automatically turn off after a few minutes, or you can turn it off by pressing the power button again for 3s.
You can use the lock on the rear wheel, to lock the bike, if you decide to have a break.
To unlock the rear lock, you have to use the app and scan the QR code on the rear lock to unlock it.